#include<stdio.h>
   int main()
{   const int number = 10;
    int x , i;
    int count[number];
     for (i=0;i<10;i++)  {
	     count[i] = 0; }
     scanf("%d",&x);
     while (x!=-1) {
	    if (x>=0 && x <= 9) {
		   count[x]++;}
	    scanf("%d",&x);
	 }
    for ( i=0;i<number;i++) {
	   printf("%d:%d\n",i,count[i]);
	  }
    return 0;

}
